Ninja Gaiden

Gaiden” means “side-story” in Japanese, which has always been confusing, because the series is not a spin-off, even if protagonist Ryu sometimes fights in the Dead or Alive series. Perhaps the hundreds of times we’ve died across both the series’ rock-hard 2D and 3D outings are all considered side-stories to the main tale of Ryu’s incredible, vicious, near-impossible victories.